The Severn River main stem areas, with their corresponding speed limits, are set forth below: Spa and Back Creek Entrance Area. This area is enclosed by a line beginning at Triton Light, at or near Lat. 38° 58.887' N., Long. 76° 28.568' W., then running 146° (True) to the shoal beacon off Horn Point, at or near Lat. 38° 58.408' N., Long. 76° 28.152' W., then running 180° (True) to the outer beacon at Back Creek, at or near Lat. 38° 57.952' N., Long. 76° 28.150' W., then running 299° (True) to Chinks Point, at or near Lat. 38° 58.053' N., Long. 76° 8.382' W., then running 350° (True) to Horn Point, at or near Lat. 38° 58.352' N., Long. 76° 28.450' W., then running 350° (True) to the point of beginning. Except as otherwise restricted, the speed limits for this area are: 6 knots during the boating season; 35 knots from sunrise to sunset during the nonboating season; and 20 knots from sunset to sunrise during the nonboating season. Lower Severn River Area. This encompasses the area north of a line beginning at Greenbury Point, at or near Lat. 38° 58.477' N., Long. 76° 27.268' W., then running 228° (True) to the outer beacon at Back Creek, at or near Lat. 38° 57.952' N., Long. 76° 28.015' W., then running 290° (True) to Chinks Point, at or near Lat. 38° 58.053' N., Long. 76° 28.382' W., then running 350° (True) to Horn Point, at or near Lat. 38° 58.352' N., Long. 76° 28.450' W., then running 350° (True) to Triton Light, at or near Lat. 38° 58.887' N., Long. 76° 28.568' W., and downstream of a line beginning at Severn Narrows, at or near Lat. 39° 4.086' N., Long. 76° 34.543' W., then running 16° (True) to a point, at or near Lat. 39° 4.238' N., Long. 76° 34.489' W., including the areas known as Round Bay and Little Round Bay, and excepting the area around the Old Severn River Fishing Pier at Jonas Green Park beginning at the north shore of the park, at or near Lat. 38° 59.712' N., Long. 76° 29.117' W., then running 236° (True) to a point, at or near Lat. 38° 59.657' N., Long. 76° 29.220' W., then running 145° (True) to a point, at or near Lat. 38° 59.612' N., Long. 76° 29.180' W., then running 55° (True) to a point on the south shore of the park, at or near Lat. 38° 59.697' N., Long. 76° 29.022' W. Except as otherwise restricted, the speed limits for this area are: 35 knots from sunrise to sunset; and 20 knots from sunset to sunrise. Severn Narrows Area. This encompasses the area upstream of a line beginning at a point, at or near Lat. 39° 4.086' N., Long. 76° 34.543' W., then running 16° (True) to a point, at or near Lat. 39° 4.238' N., Long. 76° 34.489' W., and downstream of a line beginning at a point, at or near Lat. 39° 4.437' N., Long. 76° 35.298' W., then running 216° (True) to a point, at or near Lat. 39° 4.375' N., Long. 76° 35.357' W. Except as otherwise restricted, the speed limits for this area are: 6 knots on Saturdays, Sundays, and State holidays; 35 knots on weekdays from sunrise to sunset; and. 20 knots on weekdays from sunset to sunrise. Indian Landing — Sunrise Beach Area. This encompasses the area between Severn Narrows and Indian Landing Point, which is upstream of line beginning at a point, at or near Lat. 39° 4.437' N., Long. 76° 35.298' W., then running 216° (True) to a point, at or near Lat. 39° 4.375' N., Long. 76° 35.357' W., and downstream of a line beginning at a point, at or near Lat. 39° 4.672' N., Long. 76° 36.450' W., then running 16° (True) to a point, at or near Lat. 39° 4.868' N., Long. 76° 36.378' W. Except as otherwise restricted, the speed limits for this area are: 35 knots from sunrise to sunset; 20 knots from sunset to sunrise; and For a controlled ski course, as set forth in COMAR 08.04.16. Upper Severn River Area. This encompasses the area above Indian Landing Point and below Severn Run, which is upstream of a line beginning at a point, at or near Lat. 39° 4.672' N., Long. 76° 36.450' W., then running 16° (True) to a point, at or near Lat. 39° 4.868' N., Long. 76° 36.378' W., and downstream of a line beginning at a point, at or near Lat. 39° 4.642' N., Long. 76° 36.862' W., then running 180° (True) to a point, at or near Lat. 39° 4.547' N., Long. 76° 36.862' W. Except as otherwise restricted, the speed limits for this area are: 6 knots on Saturdays, Sundays, and State holidays; 35 knots on weekdays from sunrise to sunset; and 20 knots on weekdays from sunset to sunrise. Severn Run Area. This encompasses the area upstream of a line beginning at a point, at or near Lat. 39° 4.642' N., Long. 76° 36.862' W., then running 180° (True) to a point, at or near Lat. 39° 4.547' N., Long. 76° 36.862' W., and running to the head of the river. Except as otherwise restricted, the speed limit for this area is a minimum wake zone. Naval Yard Patrol Craft Pier Construction Area. This encompasses the area enclosed by a line beginning at or near Lat. 38° 58.987' N, Long. 76° 28.229' W, then running 226° True to a Point, at or near Lat. 38° 58.926' N, Long. 76° 28.310' W, then running 123° True to point, at or near Lat. 38° 58.894' N, Long. 76° 28.250' W, then running 105° True to a point, at or near Lat. 38° 58.846' N, Long. 76° 28.023' W, then running 112° True to a point, at or near Lat. 38° 58.790' N, Long. 76° 27.845' W, then running 26° True to a point, at or near Lat. 38° 58.868' N, Long. 76° 27.795' W, then running 289° True to the point of beginning. The speed limit for this area is 6-knots at all times, effective through October 15, 2025. Jonas Green Park Area. This encompasses the area beginning at the north shore of the park, at or near Lat. 38° 59.712' N., Long. 76° 29.117' W., then running 236° (True) to a point, at or near Lat. 38° 59.657' N., Long. 76° 29.220' W., then running 145° (True) to a point, at or near Lat. 38° 59.612' N., Long. 76° 29.180' W., then running 55° (True) to a point on the south shore of the park, at or near Lat. 38° 59.697' N., Long. 76° 29.022' W. Motorized vessels are prohibited from this area without prior written permission from the Park supervisor. The Severn River main stem areas may contain designated rowing areas as set forth in Regulation .04 of this chapter.